tests/UnitLibrary/gate/adder.vg - third_party/Surelog - Git at Google

 module adder();
 // gate-level
 m f1();
 m f2();
 endmodule

 module m();
 // gate-level
 bot bot1();
 bot bot2();
 endmodule
	module adder();
	// gate-level
	m f1();
	m f2();
	endmodule

	module m();
	// gate-level
	bot bot1();
	bot bot2();
	endmodule